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        1. She __________ be here. I saw her come in.
          A.canB.mayC.shouldD.must
          D
          考查情態(tài)動詞。句意“她一定在這里,我看見她進來了!眂an“可能”;may“可能”,可能性比can;should“應該”;must“一定”,用于肯定推測,否定推測用can’t。故選D。
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